JuliaAI / JuliaAI/MLJLinearModels.jl

NewtonCG is too slow

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performances
Dominant language
Julia
Stars
86
Forks
15
PR merge metrics
No merged PRs in 30d

Description

It shouldn't be; this may be due to issues with the Krylov Solver; consider rewriting your own NewtonCG using the cg from IterativeSolvers & starting with a simple backtracking; maybe later with Hager-Zhang.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating NewtonCG and the current Krylov Solver implementation, then compare the solver approach with IterativeSolvers' cg. The issue suggests starting with simple backtracking and possibly later using Hager-Zhang, but it does not name files, tests, benchmarks, or a completion criterion.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
machine-learning
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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